if err := DB.Migrator().DropTable(allModels...); err != nil {
		t.Fatalf("Failed to drop table, got error %v", err)
	}

	if err := DB.AutoMigrate(allModels...); err != nil {
		t.Fatalf("Failed to auto migrate, got error %v", err)
	}

	if tables, err := DB.Migrator().GetTables(); err != nil {
		t.Fatalf("Failed to get database all tables, but got error %v", err)
	} else {

		t.Errorf("Test expected to return nil, failed instead got a non-nil value %s", toObjectErr(nil))
	}
	if toStorageErr(nil) != nil {
		t.Errorf("Test expected to return nil, failed instead got a non-nil value %s", toStorageErr(nil))
	}
	ctx := context.Background()
	if toAPIError(ctx, nil) != noError {
		t.Errorf("Test expected error code to be ErrNone, failed instead provided %s", toAPIError(ctx, nil).Code)
	}
}

	err := obj.MakeBucket(context.Background(), bucket, MakeBucketOptions{})
	if err != nil {
		// Failed to create newbucket, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}
	// Initiate Multipart Upload on the above created bucket.
	res, err := obj.NewMultipartUpload(context.Background(), bucket, object, opts)
	if err != nil {
		// Failed to create NewMultipartUpload, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

				return
			}
		case "FailStats":
			err = z.FailStats.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "FailStats")
				return
			}
		case "Failed":
			err = z.Failed.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Failed")
				return
			}
		case "ReplicatedCount":
			z.ReplicatedCount, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "ReplicatedCount")
				return

            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a scroll request.", e);
            }
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, e);
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a scroll request.", e);
            }

            if (response.getHttpStatusCode() == 200) {
                return true;
            }
            logger.warn("Failed to reindex from {} to {}", fromIndex, toIndex);
        } catch (final IOException e) {
            logger.warn("Failed to reindex from {} to {}", fromIndex, toIndex, e);
        }
        return false;
    }

          },
          "exemplar": true,
          "expr": "sum by (server) (minio_cluster_replication_total_failed_bytes{job=\"$scrape_jobs\"})",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{server}}",
          "refId": "A"
        }
      ],
      "title": "Failed Data",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",

                    logger.debug("Login failed. No permissions. {}", context);
                }
                return OptionalEntity.empty();
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Logged in. {}", context);
            }
            return OptionalEntity.of(ldapUser);
        } catch (final Exception e) {
            logger.debug("Login failed.", e);
        }

	var err error
	err = DB.Create(&q1).Error
	if err != nil {
		t.Errorf("failed to create:%v", err)
	}

	err = DB.Create(&q2).Error
	if err != nil {
		t.Errorf("failed to create:%v", err)
	}

	var qs []QueryResetNullValue
	err = DB.Joins("Item1").Joins("Item2").Find(&qs).Error
	if err != nil {
		t.Errorf("failed to find:%v", err)
	}

	if len(qs) != 2 {

          "expr": "sum by (bucket) (minio_bucket_replication_total_failed_bytes{job=\"$scrape_jobs\"})",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "Replication Failed [{{bucket}}]",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeRegions": [],
      "title": "Replication Data Failed",
      "tooltip": {
        "shared": true,